Patents Represented by Attorney Paul Weinsten

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  • Apparatus and process for making tube in sheet heat exchangers
    Patent number: 4224817
    Abstract: A process and apparatus is provided for forming an opening in a composite metal panel. The edge of the panel is hammered to delineate a bond interface. The hammering includes both moving a hammering member to and fro against the edge while simultaneously rocking the member about the edge. This provides improved delineation of the bond interface for further processing.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: September 30, 1980
    Assignee: Olin Corporation
    Inventors: Charles A. Kleine, Kenneth Belangee